Lance Armstrong has been stripped of his seven Tour de France titles and now confesses in an interview with Oprah Winfrey to using performance-enhancing drugs.

Click the play icon above to watch footage from the interview

Use this interactive graphic to explore the context, development and aftermath of Armstrong's fall from athletic glory, and to look at the broader issues of Armstrong's Livestrong Foundation charity and the use of doping in professional sports. Sorry, your browser does not support iframes